Email marketing

SendPulse

SendPulse is a service for email and SMS mailings, as well as chat bots in Telegram and Facebook.

Streak

Streak is a customer relationship management service integrated with a Gmail mailbox.

Twilio

Twilio is a service for programmers that provides the ability to make calls, hold conferences and send messages.

VipeCloud is a cloud-based customer relationship management (CRM) solution that serves small and medium-sized enterprises in various industries, such as professional services, insurance, real estate, and more. Key features include task management, assessment of potential customers, email marketing, document storage, integration with social networks and mobile access.

Zoho Mail

Zoho Mail is a professional mail service designed for both email distribution and creation of a unique mailbox, organization and sorting of letters.